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CVE-2015-1472

Description

The ADDW macro in stdio-common/vfscanf.c in the GNU C Library (aka glibc or libc6) before 2.21 does not properly consider data-type size during memory allocation, which allows context-dependent attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a long line containing wide characters that are improperly handled in a wscanf call.

POC

Reference

- http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html

- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html

- http://seclists.org/fulldisclosure/2019/Jun/18

- http://seclists.org/fulldisclosure/2019/Sep/7

- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

- https://seclists.org/bugtraq/2019/Jun/14

- https://seclists.org/bugtraq/2019/Sep/7

Github

- https://github.com/ARPSyndicate/cvemon

- https://github.com/RedHatProductSecurity/rhsecapi

- https://github.com/auditt7708/rhsecapi